Off Topic Reverse image search tips/Finding people you know?

[oliver21a]

I'm not sure if this is the right section, but I'm trying to find pictures of someone I used to follow. I know she used to post them on reddit, I've seen them on there before but since lost the username. She sells through snap but would post some on reddit as well. I've taken some of her twitter posts and ran them through google, tineye, and yandex with no luck, but I know theyre out there. You guys have any better info on successfully finding anything this way? Or general tip thread on finding people you know irl